Silverstein Properties announced today that IEX, a start-up stock market dedicated to institutionalizing fairness through technology, and the subject of Michael Lewis’ book, Flash Boys, has signed a Read more...

East Bathtub:• Major excavation of the south half of the east bathtub (sites of Towers Three and Four) from July 2007 through February 17, 2008; Silverstein Properties's construction team is mobilized and preliminary construction is underway • Excavation of the Tower Two site through June 30, 2008; crews began working double shifts in February 2008 • Installation of mini-piles continues around the 1 train box, which runs through the WTC site along Greenwich Street • Slurry wall installation was completed in mid-May 2007 in the bathtub's south half; installation of tiebacks took place through late 2007

Memorial:• Slurry wall reinforcement • Cassions and mini-piles installation was completed March 2008 • The "Survivors Stairway" was relocated from its original location to the west side of the WTC site, to be incorporated into the underground Memorial by 2009 • The first steel erected in the north footprint in winter 2008 • Memorial crews plan to remove the ramp into the WTC site in summer 2008 to continue construction on the south footprint • The World Trade Center museum and memorial complex has reached its private fundraising goal of $350 million, its board of directors announced April 9